scholarly journals Excitation of high order orbital angular momentum modes in ultra-short chiral long period fiber gratings

2021 ◽  
Author(s):  
Zheng Huang ◽  
Zhiyong Bai ◽  
Guoxuan Zhu ◽  
Churou huang ◽  
Chen Jiayan ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
High Order ◽  
Fiber Gratings ◽  
Long Period ◽  
Long Period Fiber Gratings

Helical Long-Period Fiber Gratings as Wavelength-Tunable Orbital Angular Momentum Mode Generators

2020 ◽  
Vol 32 (7) ◽  
pp. 418-421
Author(s):  
Zhiyong Bai ◽  
Yiping Wang ◽  
Yan Zhang ◽  
Cailing Fu ◽  
Shen Liu ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Fiber Gratings ◽  
Long Period ◽  
Wavelength Tunable ◽  
Momentum Mode ◽  
Long Period Fiber Gratings

scholarly journals Controllable all-fiber generation/conversion of circularly polarized orbital angular momentum beams using long period fiber gratings

Nanophotonics ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 287-293 ◽  
Author(s):  
Ya Han ◽  
Yan-Ge Liu ◽  
Zhi Wang ◽  
Wei Huang ◽  
Lei Chen ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Higher Order ◽  
Fiber Grating ◽  
Telecommunication System ◽  
Circularly Polarized ◽  
Long Period ◽  
Flexible Mode ◽  
Long Period Fiber Gratings ◽  
Core Modes

AbstractMode-division multiplexing (MDM) is a promising technology for increasing the data-carrying capacity of a single few-mode optical fiber. The flexible mode manipulation would be highly desired in a robust MDM network. Recently, orbital angular momentum (OAM) modes have received wide attention as a new spatial mode basis. In this paper, we firstly proposed a long period fiber grating (LPFG) system to realize mode conversions between the higher order LP core modes in four-mode fiber. Based on the proposed system, we, for the first time, demonstrate the controllable all-fiber generation and conversion of the higher order LP core modes to the first and second order circularly polarized OAM beams with all the combinations of spin and OAM. Therefore, the proposed LPFG system can be potentially used as a controllable higher order OAM beam switch and a physical layer of the translating protocol from the conventional LP modes communication to the OAM modes communication in the future mode carrier telecommunication system and light calculation protocols.

scholarly journals Advances on Mode-Coupling Theories, Fabrication Techniques, and Applications of the Helical Long-Period Fiber Gratings: A Review

Photonics ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 106
Author(s):  
Hua Zhao ◽  
Hongpu Li
Keyword(s):  
Angular Momentum ◽  
Optical Fiber ◽  
Optical Communication ◽  
Optical Sensors ◽  
Precision Measurement ◽  
Mode Coupling ◽  
Fiber Gratings ◽  
Long Period ◽  
Mode Converters ◽  
Long Period Fiber Gratings

In this paper, we have briefly review the developing history and recent advances made with regard to helical long-period fiber gratings (HLPGs) in three aspects, i.e., the mode-coupling theories, the fabrication techniques, and the applications. It is shown that, due to the intrinsic helicity characteristics, which are especially suitable to control the loss, polarization, and orbit-angular-momentum (OAM) states of the light in optical fiber, HLPGs have recently attracted great research interest and have found various applications, such as the mode-converters, the torsion sensors, the band-rejection filters, wave plates, linear- and circular-light polarizers, and OAM mode generators, etc. It is believed that HLPGs and the HLPGs-based devices would find further applications to not only the fields of optical sensors and optical communication, but also other fields such as ultrahigh precision measurement, quantum optics, and biochemistry, etc.

Terahertz-bandwidth high-order temporal differentiators based on phase-shifted long-period fiber gratings

2009 ◽  
Vol 34 (20) ◽  
pp. 3116 ◽  
Author(s):  
Radan Slavík ◽  
Yongwoo Park ◽  
Mykola Kulishov ◽  
José Azaña
Keyword(s):  
High Order ◽  
Fiber Gratings ◽  
Long Period ◽  
Long Period Fiber Gratings

Ultrabroadband single-mode long-period fiber gratings using high-order cladding modes

2004 ◽  
Vol 96 (11) ◽  
pp. 5987-5991 ◽  
Author(s):  
Vinayak Dangui ◽  
Michel J. F. Digonnet ◽  
Gordon S. Kino
Keyword(s):  
Single Mode ◽  
High Order ◽  
Fiber Gratings ◽  
Long Period ◽  
Long Period Fiber Gratings
Sign in / Sign up

Export Citation Format

Share Document